Function test

packages/core/rxjs-interop/test/to_signal_spec.ts:385–396

(fn: () => void | Promise<void>)

});

function test(fn: () => void | Promise<void>): () => Promise<void> {
  return async () => {
    const injector = Injector.create({
      providers: [{provide: EnvironmentInjector, useFactory: () => injector}],
    }) as EnvironmentInjector;
    try {
      return await runInInjectionContext(injector, fn);
    } finally {
      injector.destroy();
    }
  };
}